Apparatus for making cops.



Witnesses.-

% J2me:

. PATENTED'FEB. 4, 1908. A J. SGHAR R-NUSsBAUA/IER.

APPARATUS FOR MAKING OOPS.

APPLICATION FILED AUG. 1. 1905.

4 SHEETS-SHEET 1.

No. 878,091. PATENTED FEB. 4, 1908.

A J. SGHARER-NUSSBAUMER.

APPARATUS FOR MAKING COPS.

APPLICATION FILED AUG.1,1905.

4 SHEETS-SHEET 2.

Fig.2

'21 a 6 c a 33 F A H 35 Ni! AWIIIHW F PATENTED FEB. 4, 1908.

APPLICATION FILED AUG. 1. 1905.

J SOHARER-NUSSBAUMER APPARATUS FOR MAKING COPS.

No. 878,091. PATENTED FEB. 4, 1908. J. SOHARER-NUSSBAUMER.

APPARATUS FOR MAKING OOPS.

APPLICATION FILED AUG. 1. 1905.

4 SHEETSSHEET 4.

ll l'ilzesses: A

if HA4 n UNITED sTATEs PATENT OFFICE.

.TAKOB SOHZIRER-NUSSBAUMER, OF ERLENBAGH, SWITZERLAND.

APPARATUS FOR MAKING oors.

Specification of Letters Patent.

Application filed August 1. 1905. Serial 110. 272.199.

T 0 alLwhom it may concerm.

- Be it known that I, JAKoB ScHARER-NUss- BAUMER, a citizen of the Republic of Switzerland, residing at Erlenbach, District of Meilen, Switzerland,- have invented new and useful Improvements in Apparatus for Making Cops, of which the following is a specification, I

. In weaving textiles and especially doubled silk fabrics in which, not merely a -single thread, but several threads, not twisted together, are passed into the shed at each pick, the present practice is to employ cops on which the various threads are twisted together to form a single thread, and this latter is wound on the cop in parallel turns,

so. that the various turns or coils lie at right angles to the longitudinal axis of the cop spindle. f

. The use of such cops in shuttles, however, is attended with many disadvantages, as

' the resultant fabric shows, due to the said method of winding in parallel turns.

The exceedingly rapid speed at which silk looms are worked now-a-days, demands "the use of tightly wound cops, otherwise the thread slides on the cop-spindle, causing jamming together of the various coils. With such tightly wound cops with parallel .coil's however, the silk threads, which despite their being twisted'are still very delicate, become stretched in winding. The threads, therefore, shrink together again, which, however, does not occur till after they have been woven. This causes the entire fabric to draw together in, the direction of the weft, thus presenting a crinkled appearance. Such a fabric has then to be smoothed again by artificial means, involving considerable ex-- penditure of bothtime and money.

Loosely wound cops with They. have the drawbacks that the fine twisted silk threads wedge themselves into I the symmetrically lying the shed lying parallel to each other.

doubled parallel coils are. employed for looms working at a relatively low speed.

the lay. Furthermore, with such cops with 1 doubled parallel coils, any lumps or knots or the like 1n the doubled thread cause interruptions of the work, owing to the thread, on being drawn from the cop, catching in these obstructions and thereby causing several turns or layers of thread to be drawn'ofi' simultaneously, or the threads may break.

Another serious defect of cops which aredoubled parallel wound, whether tightly or loosely wound, is that the doubled thread Patented Feb. 4, 1908;

lying next thee cop stick, onbeingdrawn off is xposed, to resistance or friction at the long in contact with the stick during the period of unwinding. This friction increases as the unwinding proceeds, s'o that doubled parallel wound thread cops of great lengths cannot be wound, small cops having there-- fore always to be employed. All these defects are entirely overcome by the use of copsmade by the machine forming the sub- In carrying ject of the present invention.

-out the latter several threads are conducted to a co -stick through a guide turning on a vertica spindle, .in such manner that they can be lightly twisted to form a single thread, lying throughout in'. cross manner on the cop-stick. Such novel cop is shown and described in my application for patent of the United States Serial No. 308,066, filed March 26th, 1906. In this way the composite thread on being unwound from the cop (for instance, on unwinding in. the

shuttle), is again untwisted into the component threads which are thus brought into In the machine employed for carrying out my invention the cop spindle is given a rapid contlnuous reci' rocatory motion by means of stick; This is due to-the thread being so mechanism which rotates the thread-guide I round the spindle. I

In the accompanying drawings Figure 1 is a frontelevation of the end portion of the machine. Fig. 2 is a section on the line A-B of Fig. 1. Fig. 3 is a sectional view showing one of the cop winding devices to an enlarged scales 4 is a section "of the same taken on the line CD of Fig; 3. Fig.

'5 shows a cop drawn to a' still larger scale.

The machine standards support the table 1, a bar 2,below the latter, and a second horizontal bar 3.

4 is the main driving shaft and 5 the shaft for driving the cop winding devices. Both comprises a vertical, non-rotary spindle 6,

said spindles reciprocating in the bearings 7 secured to the bar 3 and in tubular bearings 8 (Fig. 3) carried by arms 9 projecting from the bar 2.

40 is a sleeve which is capable of both turning and sliding on the bearing 8. The bottom of the sleeve 40 has teeth 10, while the top is formed as a disk 11. Below the latter a riction disk 12 is secured to the sleeve 40, which latter disk is driven by a friction wheel 13 mounted on the shaft 5. With the teeth 10 of each sleeve 40 there meshes a pinion 14, the vertical axis of which is mounted in a bearing-bracket 15 secured to the bar 3. On the axis there is also mounted a cam 16, presenting a groove, and in the latter there engages an adjustable stud 17 projecting horizontally from the spindle 6. In this manner the latter is reciprocated vertically on rotation of the cam. The disk 11 carries two vertical rods 18 located diametrically opposite to each other and at an equal distance from the axis of the disk. They serve a purpose to' be hereinafter described. Between the table 1 and a'second table 19, lo-

cated above the same, there are arranged for each cop winding device four bobbins 20, located one behind the other in a slanting line. From these bobbins the silk thread twisted on the machine, that is, the thread to be wound as doubled thread on the cop, is taken. The bobbins are held between the points of pins 21, 22 mounted on the tables 1 and 19. on which, below the table 19, there rest weights in the forin of small rollers 24: These can-move up and down, but not laterally, and by pressing on the disks 23 they exert a braking action on the bobbins 20.

On the upper table a tension device is provided for each winding apparatus. The tension device presents a tension pulley 27, mounted on the crank pin of a small crank shaft 25, carried by a bracket 2-6 secured to the table 19. 28 are spiral springs, one end of which takes below the crank pin, while the other end'presses against the bracket 26. Each winding apparatus has its own stopdevice. The latter has a v crank shaft 29,

mounted on the arms 9, the crank30 of which takes below the, disk 12. On the shaft 29 a weight 41 is secured, the center of gravity of which, when the winding device is in operation, lies above the axis-of the shaft 29.. In the weight 41 a stop-arm 31 having a projecting pin 32 is secured.

The whirls consist of a horizontal bridge or plate 33 (Figs. 3 & 4), having sockets 34 to rece1ve the rods 18 which guide the said plate. One of these sockets is provided with slots at each side to receive springs 35 which engage in notches 36 of the rod 18,

The upper pins 22 carry disks 23,

wound on in twisted condition.

which passes through this socket. Below the plate 33 is a box containing a ring 37, relatively to which the plate can rotate. The whirl has in addition to the actual thread guide 39, an auxiliary guide-eye 38. Any suitable number of these co winding devices may naturally be emp oyed, and all 0 erate in the same manner. The method of operation is as follows:

The threads at b c d (Fig. 5) drawn from the bobbins 20 are conducted over the tension disk (Fig. 2) of the tension device and-from here as twisted doubled thread E through the eyes 38 and 39. It is then secured in well known manner to the conical part ofa cop-stick f stuck on the cop spindle. -The winding apparatus is then set in motion by tact with the friction wheel 13 whereby the sleeve 40, together with the rods 18 and whirl, is caused to rotate rapidly in the-direction of the arrow (Fig. 3) round the non rotary cop spindle and therefore round the cop-stick. At the same time, the pinion 14 meshes with the teeth 10 whereby the cam 16 isrotated. This causes the cop-stick to be rapidly reciprocated up and down through a distance corresponding to the height of the cone to be produced (designated by a in Figs. 3 & 4). In'this manner the doubled thread E, consisting of the four threads at c (1, is wound cross-wise on the cop, and the ratio of transmission between 10 and 14 is so selected that the doubled thread E is wound in closed cross manner. Through the whirl, or rather the thread guide 39 thereof, rotating round the spindle, the thread is twisted during the winding operation, so that it is The urpose ofthis twisting will be described be ow.

During the winding operation the material wound on will, in becoming gradually thicker,

definite thickness, the plate 33 presses. I

against the pin 32, wherebyv the stop arm 31 (which when the apparatus is working occu pies a vertical position) comes into an inclined position, theweight 30 also turning to one side.- The shaft 29 is thus turned and its crank lifts the sleeve 40 with the friction disk 12, that is to say,the disk 12 is lifted from the wheel 13, so that the whirl and spindle stop, as is shown in Fig. 1, in

the case of the third apparatus from the left-hand side.

It is necessary to stop the spindle to take off the finished cop, because it does not, as in prior machines with parallel-winding mechanism, move slowly, ut reciprocates at a high speed. The cop, therefore, cannot be removed from the rotating spindle without risk of damaging the thread. To move the finished cop it is necessary to slightly raise the whirl from the spindle, so that, with the cop, it can be turned into the dotted line position Fig. 1. The weights 24, which on rotation of the bobbins 20 run on the disks 23, act as a brake for the bobbins, so that a certain definite tension is maintained in the thread drawn from the same. By increasing or decreasing these weights the tension of the thread can be regulated at will. The tension device with the spring 28, already described, is for the purpose of compensating for any alteration in the amount of tension of the thread taken from the bobbins 20. For if the tension decreases, the pulley 27 will be moved upward by the spring 28, so that the thread will be drawn tighter. Vice versa, if the tension increases the pulley 27 will be moved downward, the spring 28 yielding, so that the pull on the thread isnot unduly great. i The cops wound in thismanner are of the following construction. The four threads a b c d are twisted together. The thus twisted composite thread E lies in cross turns or coils on the stick Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be er-- formed, I declare that what I claim is:

1. In a machine for making cops, a vertically slidable, non-rotating spindle, a toothed element rotatable about the spindle, friction means to drive said element, a winding mechanism driven by said element, a second toothed element engaging with the first toothed element, a rotating cam di'iven from the second toothed element, and means on the spindle engaging the cam whereby said spindle is rapidly raised and lowered by the cam.

2. In a machine for making cops, a vertically movable, non-rotatable spindle, a rotatable sleeve on the spindle having long teeth, means to frictiona ly drive the sleeve, a

winding mechanism driven by said sleeve, a

gear wheel meshing with the teeth on said sleeve, a spiral cam rotated by the gear wheel, and a pin on the spindle engaging the cam, whereby the spindle is rapidly reciprocated.-

3. In a machine for'winding co s, a shaft having a number of friction whee s thereon, a friction disk having a toothed sleeve driven by each friction wheel, a cop carrying spindle vertically reciprocable and non-rotatable in each sleeve, a in adjustable on each spindle, a gear whee gearing with each sleeve and a high pitch spiral cam rotated by each wheel and enga ed by the pin on the spindle. 4. In a madliine for winding cops, the combination with the frictionally driven winding means and a vertically reciprocable cop spindle of a crank arm and a weight operated by the winding means when-in its end osition to rotate the weight and arm and ift said means from its driving position, substantially as described.

, 5. In a machine for winding cops, the combination with frictionally driven winding means and a vertically reciprocable cop name to this specification, in the presence-of two subscribing witnesses.

JAKOB scHiRER-N ssBAUMER. Witnesses: A. LIEBERKNEOHT, MORITZ VEITn. 

